Michael etjnstetlee



"(No Model.) I

' M. RUNSTETLER.

Maohinefor Upsetting Blanks for Corn Planter Runners. No. 231,620, Patented Aug. 24, I880,

Fig.1. 4

MICHAEL RUNSTETLER, OF DAYTON,

OHIO, ASSIGNOR TO THE FARMERS FRIEND MANUFACTURING COMPANY, "OF SAME PLACE.

MACHINE FOR UPSETTING BLANKS FOR CORN-PLANTER RUNNERS.

SPECIFICATION forming part of Letters Patent No. 231,620, dated August 24, 1880.

Application filed April 10, 1880.

To all whom it may concern:

Be it known that I, MI HAEL RUNsTE'rLER, of Dayton, in the county of Montgomery and State of Ohio, have invented certain new and useful Improvements in Machines for Upsetting Thin Sheet-Metal Blanks for Corn-Planter ltunners, of which the following is a specification.

My invention relates to the manner of making shoes or runners for corn-planters or other seeding-machines. These runners are made of broad thin plates of metal, and have their rear ends forked, forming an open socket, so as to receive within each the lower end of the droptube. One side of the fork is formed by welding on another plate of the same width and thickness of sufficient length; but before welding, in order to maintain the proper tensile strength of the metal, it is necessary to increase the thickness of the runner-blank at the point where the weld is to be made. This enlargement has usually been made on both sides of the blank by hand-upsetting, which is tedious.

By my invention the runner-blank is upset or swelled very rapidly by power on the side where the weld is to be made, so that after reduction by welding its thickness will be equal to the parts not upset.

My invention consists of two vertical facedies fixed upon a frame suitable for heavy work, one of said dies being fixed, and the other made movable by means .of two eccentric or cam levers, which when set firmly clamp the two dies together. A plunger mounted on a carriage, and preferably driven by pitmen, is arranged in line with the center of the die-plates, the head of which plunger is shaped to tit the heel end of the blank to be upset, and of such shape as will prevent the spreading of the end of the blank. A recess is made in the face of oneof the die-plates of the depth and shape corresponding to the amount of thickening or upsetting required.

Figure l is a plan view of my invention. Fig. 2 is an elevation of the same, partly in section. Fig. 3 is a detailed elevation on line a; m, Fig. 1. Fig. 4 is a plan showing arecess in one of the die-plates.

A A A A represent the frame of the ma- (No model.)

chine, which should be substantially built. B B represent a metallic bed-plate. O represents a vertical die-plate rigidly attached to bed-plate B B. 1) represents a metallic brace, and H a U-shaped metallic brace, both supporting and holding the die-plate fixed and rigid. D represents aledge projecting up from the rear of that part of the bed-plate lettered B and at the heel of die-plate 0. These parts are preferably made of heavy iron, cast in one piece, and with the faces planed smooth.

I represents a metal plate set in the face of die-plate O, and is opposite the point in the blank to be upset. The face of plate Iis made concave to form a recess of the size and shape to correspond to the amount of thickening or upsetting desired to be made in the metal J.

cl represents a slotted metal plate bolted fast to standard 1). i

0 represents a movable die-plate, whose face is parallel withthe plane of the inner face of die-plate C. It is made of metal, and

its outer face is ribbed to strengthen the die.

O 0 represent ribs cast on die-plate O, and are simply to strengthen the plate.

G represents a cam-lever pivoted to a boss, 9, by pivot-bolt g. This lever moves die-plate l up against die-plate O, and acts as a strong clamp to hold it in position against the strain of the plunger.

E represents a similar cam'lever' opposite the recessplate I. It is pivoted between bracestandards F by a bolt, 6. This lever is made adjustable by means of plumber-block 0, set in standards F, and regulated by set-screws f. By this means the requisite amount of clamping pressure from lever E can be secured.

O 0 represent abutments rigidly fixed to the frame-pieces A of the machine.

L L represent bosses cast on bed-plate B, and M M represent adjusting-screws, whose points bear against bosses L L. These adjusting-screws are important, as the dies can be made adjustable with reference to the stroke of the plunger.

Metal plate I is held in place by set-screws h. Between the face of this plate and the opposite face of die-plategG a recess is formed to correspend with the amount the metal blank is to be thickened. The recess could be formed in the face of plate 0; but it is preferred to line the same with the removable plate I, so that the amount of thickening can be regulated.

P represents a carriage moving backward and forward on frame-pieces A, which act as ways. 19 p are way-guides projecting from carriage 1? down between frame-plates A.

T T' represent pitmen; t, gudgeons or wrists on which pitmen T are journaled.

Q R representa T-shaped metal frame bolted to carriage P.

S represents the plunger proper. ltsforward end corresponds in shape with the heel of the blank to be upset. The lip on the upper edge, in connection with the angle of the lower edge, prevents any tendency to spread the end of the metal blank. The metal blank is heated to nearly a white heat and inserted between the dies 0 O, which are brought together by the clamp-levers G E. Plunger S is then driven forward on the carriage by the pitmen, and gives a heavy blow or stroke on the end of the blank and forces the metal to fill the recess in plate I. The levers are then reversed and the blank removed.

c 0 represent notches out in the top of O C to allow the metal to be readily taken out and inserted between the dies. The recess could be in die-plate C or in both plates. The plan here shown is the preferred form.

J represents the sheet-metal blank held between plates 0 O to be upset by stroke of plunger S.

N N represent bolts for securing the bedplate B to the frame of the machine; a, a crossbeam of the machine. Fig. 1.)

It represents an adjustable plate, which, with lug R and bolt r, secures the plunger S rigidly in position.

19 19 represent bolts passing through plunger-plate Q, rigidly securing it to carriage P.

I claim-- l. The die-plates (J 0, arranged upon the bed-plate B B, the one being fixed and having a recess for thickening the sheet-metal blank, and the other movable by means of the cam-lever clamps, all substantially as herein set forth.

2. The combination of the fixed recessed die-plate G, the movable die 0, and clamping devices with the metal plunger S, arranged upon a carriage and adapted to advance and strike the end of the metal plate, substantially as herein set forth.

' 3. The fixed vertical face-die 0, having the removable recessed plate I, arranged and attached to the face of the die-plate in the manner substantially as herein set forth.

4. The arrangement of the die-plates O 0 upon the bed-plate 13 B, in combination with the abutments 0, provided with the adjustable set-screws M, substantially as herein set forth.

In testimony whereof I have hereunto set my hand this 29th day of March, A. D. 1880.

MICHAEL RUNSTETLER.

Witnesses:

WARREN MUNGER, E. P. MATTHEWS.

(Shown in dotted lines, 

